plural memorandums or memoranda
-də 
1
: a usually brief written message or report from one person or department in a company or organization to another
The company president sent a memorandum [=(less formally) memo] to each employee.
2
law
: an informal written record of an agreement that has not yet become official
Cite this Entry
“Memorandum.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/memorandum. Accessed 24 Jun. 2026.
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